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author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-23 01:11:30 -0400 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-23 01:11:30 -0400 |
commit | 45c091bb2d453ce4a8b06cf19872ec7a77fc4799 (patch) | |
tree | 06fb2e05518ebfba163f8424e028e7faf5672d66 /arch/powerpc/mm/slb.c | |
parent | d588fcbe5a7ba8bba2cebf7799ab2d573717a806 (diff) | |
parent | 2191fe3e39159e3375f4b7ec1420df149f154101 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (139 commits)
[POWERPC] re-enable OProfile for iSeries, using timer interrupt
[POWERPC] support ibm,extended-*-frequency properties
[POWERPC] Extra sanity check in EEH code
[POWERPC] Dont look for class-code in pci children
[POWERPC] Fix mdelay badness on shared processor partitions
[POWERPC] disable floating point exceptions for init
[POWERPC] Unify ppc syscall tables
[POWERPC] mpic: add support for serial mode interrupts
[POWERPC] pseries: Print PCI slot location code on failure
[POWERPC] spufs: one more fix for 64k pages
[POWERPC] spufs: fail spu_create with invalid flags
[POWERPC] spufs: clear class2 interrupt status before wakeup
[POWERPC] spufs: fix Makefile for "make clean"
[POWERPC] spufs: remove stop_code from struct spu
[POWERPC] spufs: fix spu irq affinity setting
[POWERPC] spufs: further abstract priv1 register access
[POWERPC] spufs: split the Cell BE support into generic and platform dependant parts
[POWERPC] spufs: dont try to access SPE channel 1 count
[POWERPC] spufs: use kzalloc in create_spu
[POWERPC] spufs: fix initial state of wbox file
...
Manually resolved conflicts in:
drivers/net/phy/Makefile
include/asm-powerpc/spu.h
Diffstat (limited to 'arch/powerpc/mm/slb.c')
-rw-r--r-- | arch/powerpc/mm/slb.c | 32 |
1 files changed, 14 insertions, 18 deletions
diff --git a/arch/powerpc/mm/slb.c b/arch/powerpc/mm/slb.c index ffc8ed4de62d..6a8bf6c6000e 100644 --- a/arch/powerpc/mm/slb.c +++ b/arch/powerpc/mm/slb.c | |||
@@ -60,19 +60,19 @@ static inline void create_slbe(unsigned long ea, unsigned long flags, | |||
60 | : "memory" ); | 60 | : "memory" ); |
61 | } | 61 | } |
62 | 62 | ||
63 | static void slb_flush_and_rebolt(void) | 63 | void slb_flush_and_rebolt(void) |
64 | { | 64 | { |
65 | /* If you change this make sure you change SLB_NUM_BOLTED | 65 | /* If you change this make sure you change SLB_NUM_BOLTED |
66 | * appropriately too. */ | 66 | * appropriately too. */ |
67 | unsigned long linear_llp, virtual_llp, lflags, vflags; | 67 | unsigned long linear_llp, vmalloc_llp, lflags, vflags; |
68 | unsigned long ksp_esid_data; | 68 | unsigned long ksp_esid_data; |
69 | 69 | ||
70 | WARN_ON(!irqs_disabled()); | 70 | WARN_ON(!irqs_disabled()); |
71 | 71 | ||
72 | linear_llp = mmu_psize_defs[mmu_linear_psize].sllp; | 72 | linear_llp = mmu_psize_defs[mmu_linear_psize].sllp; |
73 | virtual_llp = mmu_psize_defs[mmu_virtual_psize].sllp; | 73 | vmalloc_llp = mmu_psize_defs[mmu_vmalloc_psize].sllp; |
74 | lflags = SLB_VSID_KERNEL | linear_llp; | 74 | lflags = SLB_VSID_KERNEL | linear_llp; |
75 | vflags = SLB_VSID_KERNEL | virtual_llp; | 75 | vflags = SLB_VSID_KERNEL | vmalloc_llp; |
76 | 76 | ||
77 | ksp_esid_data = mk_esid_data(get_paca()->kstack, 2); | 77 | ksp_esid_data = mk_esid_data(get_paca()->kstack, 2); |
78 | if ((ksp_esid_data & ESID_MASK) == PAGE_OFFSET) | 78 | if ((ksp_esid_data & ESID_MASK) == PAGE_OFFSET) |
@@ -122,9 +122,6 @@ void switch_slb(struct task_struct *tsk, struct mm_struct *mm) | |||
122 | 122 | ||
123 | get_paca()->slb_cache_ptr = 0; | 123 | get_paca()->slb_cache_ptr = 0; |
124 | get_paca()->context = mm->context; | 124 | get_paca()->context = mm->context; |
125 | #ifdef CONFIG_PPC_64K_PAGES | ||
126 | get_paca()->pgdir = mm->pgd; | ||
127 | #endif /* CONFIG_PPC_64K_PAGES */ | ||
128 | 125 | ||
129 | /* | 126 | /* |
130 | * preload some userspace segments into the SLB. | 127 | * preload some userspace segments into the SLB. |
@@ -167,11 +164,10 @@ static inline void patch_slb_encoding(unsigned int *insn_addr, | |||
167 | 164 | ||
168 | void slb_initialize(void) | 165 | void slb_initialize(void) |
169 | { | 166 | { |
170 | unsigned long linear_llp, virtual_llp; | 167 | unsigned long linear_llp, vmalloc_llp, io_llp; |
171 | static int slb_encoding_inited; | 168 | static int slb_encoding_inited; |
172 | extern unsigned int *slb_miss_kernel_load_linear; | 169 | extern unsigned int *slb_miss_kernel_load_linear; |
173 | extern unsigned int *slb_miss_kernel_load_virtual; | 170 | extern unsigned int *slb_miss_kernel_load_io; |
174 | extern unsigned int *slb_miss_user_load_normal; | ||
175 | #ifdef CONFIG_HUGETLB_PAGE | 171 | #ifdef CONFIG_HUGETLB_PAGE |
176 | extern unsigned int *slb_miss_user_load_huge; | 172 | extern unsigned int *slb_miss_user_load_huge; |
177 | unsigned long huge_llp; | 173 | unsigned long huge_llp; |
@@ -181,18 +177,19 @@ void slb_initialize(void) | |||
181 | 177 | ||
182 | /* Prepare our SLB miss handler based on our page size */ | 178 | /* Prepare our SLB miss handler based on our page size */ |
183 | linear_llp = mmu_psize_defs[mmu_linear_psize].sllp; | 179 | linear_llp = mmu_psize_defs[mmu_linear_psize].sllp; |
184 | virtual_llp = mmu_psize_defs[mmu_virtual_psize].sllp; | 180 | io_llp = mmu_psize_defs[mmu_io_psize].sllp; |
181 | vmalloc_llp = mmu_psize_defs[mmu_vmalloc_psize].sllp; | ||
182 | get_paca()->vmalloc_sllp = SLB_VSID_KERNEL | vmalloc_llp; | ||
183 | |||
185 | if (!slb_encoding_inited) { | 184 | if (!slb_encoding_inited) { |
186 | slb_encoding_inited = 1; | 185 | slb_encoding_inited = 1; |
187 | patch_slb_encoding(slb_miss_kernel_load_linear, | 186 | patch_slb_encoding(slb_miss_kernel_load_linear, |
188 | SLB_VSID_KERNEL | linear_llp); | 187 | SLB_VSID_KERNEL | linear_llp); |
189 | patch_slb_encoding(slb_miss_kernel_load_virtual, | 188 | patch_slb_encoding(slb_miss_kernel_load_io, |
190 | SLB_VSID_KERNEL | virtual_llp); | 189 | SLB_VSID_KERNEL | io_llp); |
191 | patch_slb_encoding(slb_miss_user_load_normal, | ||
192 | SLB_VSID_USER | virtual_llp); | ||
193 | 190 | ||
194 | DBG("SLB: linear LLP = %04x\n", linear_llp); | 191 | DBG("SLB: linear LLP = %04x\n", linear_llp); |
195 | DBG("SLB: virtual LLP = %04x\n", virtual_llp); | 192 | DBG("SLB: io LLP = %04x\n", io_llp); |
196 | #ifdef CONFIG_HUGETLB_PAGE | 193 | #ifdef CONFIG_HUGETLB_PAGE |
197 | patch_slb_encoding(slb_miss_user_load_huge, | 194 | patch_slb_encoding(slb_miss_user_load_huge, |
198 | SLB_VSID_USER | huge_llp); | 195 | SLB_VSID_USER | huge_llp); |
@@ -207,7 +204,7 @@ void slb_initialize(void) | |||
207 | unsigned long lflags, vflags; | 204 | unsigned long lflags, vflags; |
208 | 205 | ||
209 | lflags = SLB_VSID_KERNEL | linear_llp; | 206 | lflags = SLB_VSID_KERNEL | linear_llp; |
210 | vflags = SLB_VSID_KERNEL | virtual_llp; | 207 | vflags = SLB_VSID_KERNEL | vmalloc_llp; |
211 | 208 | ||
212 | /* Invalidate the entire SLB (even slot 0) & all the ERATS */ | 209 | /* Invalidate the entire SLB (even slot 0) & all the ERATS */ |
213 | asm volatile("isync":::"memory"); | 210 | asm volatile("isync":::"memory"); |
@@ -215,7 +212,6 @@ void slb_initialize(void) | |||
215 | asm volatile("isync; slbia; isync":::"memory"); | 212 | asm volatile("isync; slbia; isync":::"memory"); |
216 | create_slbe(PAGE_OFFSET, lflags, 0); | 213 | create_slbe(PAGE_OFFSET, lflags, 0); |
217 | 214 | ||
218 | /* VMALLOC space has 4K pages always for now */ | ||
219 | create_slbe(VMALLOC_START, vflags, 1); | 215 | create_slbe(VMALLOC_START, vflags, 1); |
220 | 216 | ||
221 | /* We don't bolt the stack for the time being - we're in boot, | 217 | /* We don't bolt the stack for the time being - we're in boot, |